Re-build What?

[DjPro]

When an engine says its been rebuilt what does that mean?<br /><br />When does an engine need to be rebuilt?<br /><br />And last, is it true that an engine can only be rebuilt once?<br /><br />Thanks

 

[DJ]

Re: Re-build What?

The best way to tell the extent of a rebuild is to lok atthe parts list. <br /><br />Typically, a rebuild includes.<br /><br />Piston rings - sometimes pistons.<br /><br />Bearings<br /><br />seals/gaskets<br /><br />Cylinder honing and/or sleeve(s).<br /><br />Most engines can be rebuilt more than once.

 

[DjPro]

Re: Re-build What?

I recently purchased a boat with a rebuilt Johnson 150hp. Parts lists are not available from the rebuild. I don't know why, but I thought cylinders could only be honed once.

 

[OBJ]

Re: Re-build What?

You can hone a cylinder more than once IF it's stays within specs..ie..bore specs. Most typically, when an engine blows, one or more cylinders will need bored. The rest can be honed if they are still in specs. Ya' only got about .004 to play with when honing.

 

[Dhadley]

Re: Re-build What?

The difference between repaired, rebuilt, remanufactured, manufactured and blueprinted is in the specs and tolerances.

 

[moderator1]

Re: Re-build What?

PLEASE DO NOT DOUBLE POST. Your posts have been combined.

 

[moderator1]

Re: Re-build What?

PLEASE DO NOT DOUBLE POST. Your posts have been combined.<br /><br />DjPro <br />Captain <br />Member # 32644 <br /><br /> posted April 25, 2004 06:55 PM <br />--------------------------------------------------------------------------------<br />Is there anyway to tell if a motor has been rebuilt? <br />--------------------------------------------------------------------------------<br />Posts: 35 | From: CT River Area | Registered: Sep 2003 | IP: Logged <br /> <br />muskrat <br />First Mate <br />Member # 39915 <br /><br /> posted April 25, 2004 07:16 PM <br />--------------------------------------------------------------------------------<br />look at the motor crankcase halfs,excessive gel seal.look at the bolts that hold the halfs together,for paint thats been disturbed.look at the powerhead gasket it will look newer. <br />--------------------------------------------------------------------------------<br />Posts: 9 | From: maryland | Registered: Apr 2004 | IP: Logged <br /> <br />rodbolt <br />Admiral <br />Member # 32169 <br /><br /> posted April 25, 2004 07:26 PM <br />--------------------------------------------------------------------------------<br />hello<br />if done correctly its all but impossible. that is the goal I shoot for.<br />good luck and keep posting <br />--------------------------------------------------------------------------------<br />Posts: 2061 | From: Kitty Hawk NC | Registered: Sep 2003 | IP: Logged <br /> <br />SoLittle <br />Admiral <br />Member # 8920 <br /><br /> posted April 25, 2004 08:18 PM <br />--------------------------------------------------------------------------------<br />If rebored with new pistons, the top of the piston will be stamped with the oversize.<br /><br />A rebuilt is not necessarily a bad thing - can be a hell of a lot better than a wore out virgin. <br />--------------------------------------------------------------------------------<br />Posts: 2444 | From: Miami Fl | Registered: Apr 2002 | IP: Logged <br /> <br />DjPro <br />Captain <br />Member # 32644 <br /><br /> posted April 25, 2004 10:31 PM <br />--------------------------------------------------------------------------------<br />but if it has been re-bored then it can not be rebuilt again, correct? <br />--------------------------------------------------------------------------------<br />Posts: 35 | From: CT River Area | Registered: Sep 2003 | IP: Logged